Faithful entanglement distribution using quantum multiplexing in noisy channel

Abstract

Quantum multiplexing provides us with a powerful approach that can distribute entanglement using only a single photonic pulse to interact with remote quantum memories. In common entanglement distribution protocols, the entanglement purification is often exploited if the distributed entanglement is degraded by the channel noise. In this protocol, we propose a faithful entanglement distribution protocol using quantum multiplexing of photon in a collective noise channel. By designing the encoding and decoding setup, our protocol can resist the collective noise. When the protocol is successful, the parties can obtain two pairs of maximally entangled states. When the protocol fails, the parties can still obtain one pair of maximally entangled state. Our protocol does not require the entanglement purification, so that it is more efficient. The above advantages enable our protocol to have important application potential in the future quantum communication field.

Robust Multi‐Party Semi‐Quantum Private Comparison Protocols with Decoherence‐Free States against Collective Noises

“…In fact, the negative influences of noises could not be neglected since the noises could reduce quantum efficiency, result in communication errors, and destroy protocol security. [27] Hence, various noise-resisting quantum protocols have been researched. [28][29][30][31][32][33] Now, researching and designing secure noise-resisting MSQPC protocols is an immediate task.…”

Faithful and efficient hyperentanglement purification for spatial-polarization-time-bin photon system

“…Quantum entanglement performs an important function in quantum information processing (QIP) and constitutes an essential resource for quantum communication and quantum computing. It has a wide range of applications in quantum key distribution, [1][2][3][4][5][6] quantum secret sharing, [7][8][9][10][11][12] quantum secure direct communication, [13][14][15][16][17][18][19][20][21] and so on. Nowadays, hyperentanglement, which refers to a quantum system that is simultaneously entangled in multiple degrees of freedom (DoFs) of photon systems, [22][23][24][25][26] has been demonstrated and has attracted widespread attention due to its excellent properties, including its high capacity, low loss rate, fewer quantum resources, and loss decoherence characteristics.…”

Security of Bennett–Brassard 1984 Quantum-Key Distribution under a Collective-Rotation Noise Channel

“…Therefore, a more practical solution is measurement device-independent (MDI) QKD, which is inherently resistant to all side-channel attacks targeting the measurement device and removes all detection-related security loopholes [28,29]. Once more, despite these advances, it has been challenging to adopt QKD widely, and large-scale deployment will likely require chip-based devices for improved performance, miniaturization, and enhanced functionality [30][31][32][33][34]. Moreover, these integrated photonic chips offer numerous benefits such as low cost, low power consumption, and well-established batch fabrication techniques [35].…”